— I didn’t know you were friends with Mr. Smith. — We ______ each other for6 years.
— Could you tell me ____ for the meeting this morning? — Because the traffic was bad.
_________ trees have been planted these years.
— Peter, ________ do you visit your grandparents? — Twice a month.
The girl has friends here, so she feels lonely.
Hurry up, ________ you will be late for school.